Shearing mechanism



ou. 26 1926. 1,604,780 R: w. MOSES SHEARIN'G MECHANISM Filed March 5.1923 4 Sheets-Sheet 1 i- I gum INVENTOR Oct. 26 .1926.

R. \N. MOSES SHEARING MECHANISM Filed March 5. 1923 4 Sheets-Sheet 4Patented Oct. 26, 1926.

UNITED sr r-ss PATENr QEIFHQE.

recent 7 arc-HARD w. Moses, or rrrrsnnaeir, PENNSYLVANIA, ss'IeNoa TOUNITED Enou- NEnaINe AND FOUNDRY roRATIoN or PENNSYLVANIA.

COMPANY, or rrr-rsBnaei-I, PENNSYLVANIA, A 001+,

sHEAR'r e MECHANISM.

The present invention relatesto the art of metal-working, and moreparticularly to an improved mechanism for shearing blooms or billetsdelivered by a roll table.

In the art to which this invention relates, it is desirable to provideshearing mechanism occupying a comparatively small amount of room,whereby it is readily adapted to installation in existing mills, and soarranged that it does not obstruct the ready disposiiton of shearedmaterial at the delivery end of the shearing mechanism. It is alsorecognized that certain advantages arise from the use of an up-cut shearwhereby a fixed roll table may be relieved from the load imposed on thematerial by the shearing operation.

By the present invention, there is provided a shearing mechanismembodying the foregoing desirable features and entirely obviatingdisadvantages inherent in downcut shears, or shears requiring an undueamount of mill space or a specially formed roll table. V

A preferred embodiment of the invention is illustrated in theaccompanying drawings, in whichi Figure 1' is a side elevation of theshear ing mechanism;

3 Figure 2 is a front elevation thereof;

Figure 8 is a section on the line III-III of Figure 4;

Figure 6t is a section on the line IVIV of Figure 3;

35 Figure is a horizontal sectional view of the front housing, taken online V-V of Figure 3; and

.Figure 6 is a horizontal sectional view taken on line VI-VI ofFigure 1. 40 Referring to the drawings, A represents a supporting framefor the shearing mechanism. This frame comprises a vertical housing 2 atthe front end thereof and spaced vertical legs 3 at the rear endthereof. The

lower end of the housing 2 is connected with the lower ends of the legs3 by the L-shaped frame members 4. The upper ends of the legs 3 areconnected with the housing 2 by the horizontal portion 5 of the frame,the

50 latter supporting a motor 6 and the driving connections between saidmotor and the cutter-head slide to be hereinafter described.

The motor 6 drives the motor pinion shaft 7 through a suitable flexiblecoupling 8. The

shaft 7 is journal-ed in suitable hearings in mounted in said housingbetween the body portion of the latter and a face plate 18 which isspaced from said body portionby flanges 19. The body portion'of thehousing 2 has a rectangular opening 20vthe-rein adjacent its lower end,and at the upper edge of saidfopening a fixed shearing member 21is'secure'd', said fixed shearing member cooperatingwith a shearingmember 22 secured to the sliding cutter-head 17 to shear the n1a terialdelivered by'a roll table through said opening 20. The face plate 18 hasan open ing 23 therein for the passage of the sheared material, saidface plate being provided at the lower edge of said opening with aforwardly projeoting apron-'24 for supporting said material.

The cutterdiead 17 has at its upper end an integral crosshead 25 havingin its lower edge a recess in which is arranged a bearing block 26 whichprovides a downwardly open bearing for the upper end 27 of a pitman 28.The bearing surfaceof said upper end 27 constitutes a portion of acylindrical surface, and the lower end face 29 of said pitman alsoconstitutes a portion of a cylindrical surface the axis of whichcoincides with the ads of the bearing surface of the upper end 2 Theeccentric 16 is journaled in the lower end portion of the pitman 28, andthe cutterhead 17 is provided intermediate its ends with an integralcrossh-ead 30 having an up per curved bearing surface 31, formed ofBabbitt metal, for cooperation with the lower end face 29 of the pitman28.

Bolted to the upper end of the housing 2 is the base 32 for thehydraulicbalance cylinder 33. Arranged for reciprocation in the cylinder33 is a piston 34 having at its upper end a yoke 35 connected by rods36with the crosshead 25 at the upper end of the cutweight of saidcutter-head and parts carried thereby; and, after each shearingoperation, said balance device permits said cutter-head to lower bygravity, but, of course, it will be evident that if the cutter-headtends to lag in the lowering operation, it will be positively moved bythe eccentric 16 and pitman 28.

The mechanism above described includes a.

suitable clutch (notshown) for controlling the operation of theeccentric shaft 15, said clutch being operable either by means of thefoot treadle 37 or either of the hand levers 38 and 39.

Referring to Figure 6, it willbe seen that the shear mechanism of myinvention comprises a supporting frame the base of which issubstantially U-shaped in horizontal section and adapted to receive thedelivery end portion of a roll table B between the sides 4 thereof, withthe housing 2 which, at its lower end, connects the'si-des l of the U-shaped portion arranged directly in front of and closely adjacent to theendmost roll of the table. a It will be seen, furthermore, that theshearing mechanism is supported entirely independently of the roll table'without interferring with the driving mechanism for the individualrolls and substantially entirely outside the area beneath said deliveryend portion of the table, so that no portion of the shearing mechanismis subjected to the destructive action of hot scale. The shear can beinstalled to cooperate =-with an existing roll table of usualconstruction without interferring in any way with the operation of saidtable and, when so installed, occupies a minimum of mill space andleaves the delivery space in front of the shearing members substantiallyunobstructed by the shearing mechanism, which greatly facilitates thehandling of the sheared material and the delivery thereof to coolingbeds and to other points of distribution. Furthermore, all of theseadvantages are obtained in a shear in which the shearing load imposedupon the material by the shearing operation is not'transmitted therebyto the table.

I claim:

Shearing mechanism, comprising a vertically operable shear having upperand lower blades, a roll table terminating adjacent the blades andadapted for delivering material to the shear, the lower shear bladebeing adapted for upward movement and normally lying below the level ofthe roll table, crank means for operating the movable shear blade, ashaft for said crank means mounted above the roll table and extendingalong the line of travel of material on the handling means, and a motorfor driving the shaft, the motor being also mounted over the roll table,substantially as described.

In testimony whereof I have hereunto set my hand.

RICHARD W. MOSES.

